中国物理B ›› 1996, Vol. 5 ›› Issue (4): 281-294.doi: 10.1088/1004-423X/5/4/005

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ITERATIVE SEMICLASSICAL SOLUTIONS OF CIP GIANT MAGNETORESISTANCE IN MAGNETIC MULTILAYERS WITH MIXED LAYERS TAKEN INTO ACCOUNT

李伯臧, 吴建华, 蒲富恪   

  1. Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1995-05-29 出版日期:1996-04-20 发布日期:1996-04-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

ITERATIVE SEMICLASSICAL SOLUTIONS OF CIP GIANT MAGNETORESISTANCE IN MAGNETIC MULTILAYERS WITH MIXED LAYERS TAKEN INTO ACCOUNT

LI BO-ZANG (李伯臧), WU JIAN-HUA (吴建华), PU FU-CHO (蒲富恪)   

  1. Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1995-05-29 Online:1996-04-20 Published:1996-04-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： The problem of solving semiclassically the current in-plane (CIP) giant magnetoresistance in magnetic multilayers with mixed layers taken into account is comprehensively studied. The solution of this problem is attributed to the solution of G-coefficients. A new choice of local spin quantization-axes is adopted so that the number of G-coefficients is reduced from Johnson-Camley's 4(5n+1) to our 4(4n+1). Furthermore, we show that actually only a half number of G-coefficients need be sloved for the symmetric structure and a superlattice can be simplified to a symmetric penta-layered structure. The main result of this paper is the establishment of the iteration method for solving the G-coefficients. Associating this method with that of numerical integration, for which a formulism is developed, the GMR. can be conveniently calculated.

Abstract: The problem of solving semiclassically the current in-plane (CIP) giant magnetoresistance in magnetic multilayers with mixed layers taken into account is comprehensively studied. The solution of this problem is attributed to the solution of G-coefficients. A new choice of local spin quantization-axes is adopted so that the number of G-coefficients is reduced from Johnson-Camley's 4(5n+1) to our 4(4n+1). Furthermore, we show that actually only a half number of G-coefficients need be sloved for the symmetric structure and a superlattice can be simplified to a symmetric penta-layered structure. The main result of this paper is the establishment of the iteration method for solving the G-coefficients. Associating this method with that of numerical integration, for which a formulism is developed, the GMR. can be conveniently calculated.

中图分类号:  (Giant magnetoresistance)

  • 75.47.De
75.70.Cn (Magnetic properties of interfaces (multilayers, superlattices, heterostructures)) 72.15.Gd (Galvanomagnetic and other magnetotransport effects)